enhance: nginx log

This commit is contained in:
Jacky 2025-04-02 18:56:15 +08:00
parent 2e284c5aa1
commit 56f4e5b87f
No known key found for this signature in database
GPG key ID: 215C21B10DF38B4D
24 changed files with 1685 additions and 347 deletions

View file

@ -1,21 +1,18 @@
package nginx_log
import (
"encoding/json"
"github.com/0xJacky/Nginx-UI/internal/helper"
"github.com/0xJacky/Nginx-UI/internal/nginx"
"github.com/0xJacky/Nginx-UI/internal/nginx_log"
"github.com/gin-gonic/gin"
"github.com/gorilla/websocket"
"github.com/hpcloud/tail"
"github.com/pkg/errors"
"github.com/spf13/cast"
"github.com/uozi-tech/cosy"
"github.com/uozi-tech/cosy/logger"
"io"
"net/http"
"os"
"strings"
"github.com/0xJacky/Nginx-UI/internal/cache"
"github.com/0xJacky/Nginx-UI/internal/nginx_log"
"github.com/gin-gonic/gin"
"github.com/pkg/errors"
"github.com/spf13/cast"
"github.com/uozi-tech/cosy"
"github.com/uozi-tech/cosy/logger"
)
const (
@ -23,10 +20,8 @@ const (
)
type controlStruct struct {
Type string `json:"type"`
ConfName string `json:"conf_name"`
ServerIdx int `json:"server_idx"`
DirectiveIdx int `json:"directive_idx"`
Type string `json:"type"`
LogPath string `json:"log_path"`
}
type nginxLogPageResp struct {
@ -130,200 +125,35 @@ func GetNginxLogPage(c *gin.Context) {
})
}
func getLogPath(control *controlStruct) (logPath string, err error) {
switch control.Type {
case "site":
var config *nginx.NgxConfig
path := nginx.GetConfPath("sites-available", control.ConfName)
config, err = nginx.ParseNgxConfig(path)
if err != nil {
err = errors.Wrap(err, "error parsing ngx config")
return
}
func GetLogList(c *gin.Context) {
filters := []func(*cache.NginxLogCache) bool{}
if control.ServerIdx >= len(config.Servers) {
err = nginx_log.ErrServerIdxOutOfRange
return
}
if control.DirectiveIdx >= len(config.Servers[control.ServerIdx].Directives) {
err = nginx_log.ErrDirectiveIdxOutOfRange
return
}
directive := config.Servers[control.ServerIdx].Directives[control.DirectiveIdx]
switch directive.Directive {
case "access_log", "error_log":
// ok
default:
err = nginx_log.ErrLogDirective
return
}
if directive.Params == "" {
err = nginx_log.ErrDirectiveParamsIsEmpty
return
}
// fix: access_log /var/log/test.log main;
p := strings.Split(directive.Params, " ")
if len(p) > 0 {
logPath = p[0]
}
case "error":
path := nginx.GetErrorLogPath()
if path == "" {
err = nginx_log.ErrErrorLogPathIsEmpty
return
}
logPath = path
default:
path := nginx.GetAccessLogPath()
if path == "" {
err = nginx_log.ErrAccessLogPathIsEmpty
return
}
logPath = path
if c.Query("type") != "" {
filters = append(filters, func(cache *cache.NginxLogCache) bool {
return cache.Type == c.Query("type")
})
}
// check if logPath is under one of the paths in LogDirWhiteList
if !nginx_log.IsLogPathUnderWhiteList(logPath) {
return "", nginx_log.ErrLogPathIsNotUnderTheLogDirWhiteList
}
return
}
func tailNginxLog(ws *websocket.Conn, controlChan chan controlStruct, errChan chan error) {
defer func() {
if err := recover(); err != nil {
logger.Error(err)
return
}
}()
control := <-controlChan
for {
logPath, err := getLogPath(&control)
if err != nil {
errChan <- err
return
}
seek := tail.SeekInfo{
Offset: 0,
Whence: io.SeekEnd,
}
stat, err := os.Stat(logPath)
if os.IsNotExist(err) {
errChan <- errors.New("[error] log path not exists " + logPath)
return
}
if !stat.Mode().IsRegular() {
errChan <- errors.New("[error] " + logPath + " is not a regular file. " +
"If you are using nginx-ui in docker container, please refer to " +
"https://nginxui.com/zh_CN/guide/config-nginx-log.html for more information.")
return
}
// Create a tail
t, err := tail.TailFile(logPath, tail.Config{Follow: true,
ReOpen: true, Location: &seek})
if err != nil {
errChan <- errors.Wrap(err, "error tailing log")
return
}
for {
var next = false
select {
case line := <-t.Lines:
// Print the text of each received line
if line == nil {
continue
}
err = ws.WriteMessage(websocket.TextMessage, []byte(line.Text))
if err != nil {
if helper.IsUnexpectedWebsocketError(err) {
errChan <- errors.Wrap(err, "error tailNginxLog write message")
}
return
}
case control = <-controlChan:
next = true
break
}
if next {
break
}
}
}
}
func handleLogControl(ws *websocket.Conn, controlChan chan controlStruct, errChan chan error) {
defer func() {
if err := recover(); err != nil {
logger.Error(err)
return
}
}()
for {
msgType, payload, err := ws.ReadMessage()
if err != nil && websocket.IsUnexpectedCloseError(err, websocket.CloseNormalClosure) {
errChan <- errors.Wrap(err, "error handleLogControl read message")
return
}
if msgType != websocket.TextMessage {
errChan <- errors.New("error handleLogControl message type")
return
}
var msg controlStruct
err = json.Unmarshal(payload, &msg)
if err != nil {
errChan <- errors.Wrap(err, "error ReadWsAndWritePty json.Unmarshal")
return
}
controlChan <- msg
}
}
func Log(c *gin.Context) {
var upGrader = websocket.Upgrader{
CheckOrigin: func(r *http.Request) bool {
return true
},
}
// upgrade http to websocket
ws, err := upGrader.Upgrade(c.Writer, c.Request, nil)
if err != nil {
logger.Error(err)
return
}
defer ws.Close()
errChan := make(chan error, 1)
controlChan := make(chan controlStruct, 1)
go tailNginxLog(ws, controlChan, errChan)
go handleLogControl(ws, controlChan, errChan)
if err = <-errChan; err != nil {
logger.Error(err)
_ = ws.WriteMessage(websocket.TextMessage, []byte(err.Error()))
return
if c.Query("name") != "" {
filters = append(filters, func(cache *cache.NginxLogCache) bool {
return strings.Contains(cache.Name, c.Query("name"))
})
}
if c.Query("path") != "" {
filters = append(filters, func(cache *cache.NginxLogCache) bool {
return strings.Contains(cache.Path, c.Query("path"))
})
}
data := cache.GetAllLogPaths(filters...)
orderBy := c.DefaultQuery("sort_by", "name")
sort := c.DefaultQuery("order", "desc")
data = nginx_log.Sort(orderBy, sort, data)
c.JSON(http.StatusOK, gin.H{
"data": data,
})
}

View file

@ -4,4 +4,6 @@ import "github.com/gin-gonic/gin"
func InitRouter(r *gin.RouterGroup) {
r.GET("nginx_log", Log)
r.GET("nginx_logs", GetLogList)
r.GET("nginx_logs/index_status", GetNginxLogsLive)
}

50
api/nginx_log/sse.go Normal file
View file

@ -0,0 +1,50 @@
package nginx_log
import (
"io"
"time"
"github.com/0xJacky/Nginx-UI/api"
"github.com/0xJacky/Nginx-UI/internal/cache"
"github.com/gin-gonic/gin"
)
// GetNginxLogsLive is an SSE endpoint that sends real-time log scanning status updates
func GetNginxLogsLive(c *gin.Context) {
api.SetSSEHeaders(c)
notify := c.Writer.CloseNotify()
// Subscribe to scanner status changes
statusChan := cache.SubscribeStatusChanges()
// Ensure we unsubscribe when the handler exits
defer cache.UnsubscribeStatusChanges(statusChan)
// Main event loop
for {
select {
case status, ok := <-statusChan:
// If channel closed, exit
if !ok {
return
}
// Send status update
c.Stream(func(w io.Writer) bool {
c.SSEvent("message", gin.H{
"scanning": status,
})
return false
})
case <-time.After(30 * time.Second):
// Send heartbeat to keep connection alive
c.Stream(func(w io.Writer) bool {
c.SSEvent("heartbeat", "")
return false
})
case <-notify:
// Client disconnected
return
}
}
}

189
api/nginx_log/websocket.go Normal file
View file

@ -0,0 +1,189 @@
package nginx_log
import (
"encoding/json"
"io"
"net/http"
"os"
"github.com/0xJacky/Nginx-UI/internal/helper"
"github.com/0xJacky/Nginx-UI/internal/nginx"
"github.com/0xJacky/Nginx-UI/internal/nginx_log"
"github.com/gin-gonic/gin"
"github.com/gorilla/websocket"
"github.com/nxadm/tail"
"github.com/pkg/errors"
"github.com/uozi-tech/cosy/logger"
)
func getLogPath(control *controlStruct) (logPath string, err error) {
// If direct log path is provided, use it
if control.LogPath != "" {
logPath = control.LogPath
// Check if logPath is under one of the paths in LogDirWhiteList
if !nginx_log.IsLogPathUnderWhiteList(logPath) {
return "", nginx_log.ErrLogPathIsNotUnderTheLogDirWhiteList
}
return
}
// Otherwise, use default log path based on type
switch control.Type {
case "error":
path := nginx.GetErrorLogPath()
if path == "" {
err = nginx_log.ErrErrorLogPathIsEmpty
return
}
logPath = path
case "access":
fallthrough
default:
path := nginx.GetAccessLogPath()
if path == "" {
err = nginx_log.ErrAccessLogPathIsEmpty
return
}
logPath = path
}
// check if logPath is under one of the paths in LogDirWhiteList
if !nginx_log.IsLogPathUnderWhiteList(logPath) {
return "", nginx_log.ErrLogPathIsNotUnderTheLogDirWhiteList
}
return
}
func tailNginxLog(ws *websocket.Conn, controlChan chan controlStruct, errChan chan error) {
defer func() {
if err := recover(); err != nil {
logger.Error(err)
return
}
}()
control := <-controlChan
for {
logPath, err := getLogPath(&control)
if err != nil {
errChan <- err
return
}
seek := tail.SeekInfo{
Offset: 0,
Whence: io.SeekEnd,
}
stat, err := os.Stat(logPath)
if os.IsNotExist(err) {
errChan <- errors.New("[error] log path not exists " + logPath)
return
}
if !stat.Mode().IsRegular() {
errChan <- errors.New("[error] " + logPath + " is not a regular file. " +
"If you are using nginx-ui in docker container, please refer to " +
"https://nginxui.com/zh_CN/guide/config-nginx-log.html for more information.")
return
}
// Create a tail
t, err := tail.TailFile(logPath, tail.Config{Follow: true,
ReOpen: true, Location: &seek})
if err != nil {
errChan <- errors.Wrap(err, "error tailing log")
return
}
for {
var next = false
select {
case line := <-t.Lines:
// Print the text of each received line
if line == nil {
continue
}
err = ws.WriteMessage(websocket.TextMessage, []byte(line.Text))
if err != nil {
if helper.IsUnexpectedWebsocketError(err) {
errChan <- errors.Wrap(err, "error tailNginxLog write message")
}
return
}
case control = <-controlChan:
next = true
break
}
if next {
break
}
}
}
}
func handleLogControl(ws *websocket.Conn, controlChan chan controlStruct, errChan chan error) {
defer func() {
if err := recover(); err != nil {
logger.Error(err)
return
}
}()
for {
msgType, payload, err := ws.ReadMessage()
if err != nil && websocket.IsUnexpectedCloseError(err, websocket.CloseNormalClosure) {
errChan <- errors.Wrap(err, "error handleLogControl read message")
return
}
if msgType != websocket.TextMessage {
errChan <- errors.New("error handleLogControl message type")
return
}
var msg controlStruct
err = json.Unmarshal(payload, &msg)
if err != nil {
errChan <- errors.Wrap(err, "error ReadWsAndWritePty json.Unmarshal")
return
}
controlChan <- msg
}
}
func Log(c *gin.Context) {
var upGrader = websocket.Upgrader{
CheckOrigin: func(r *http.Request) bool {
return true
},
}
// upgrade http to websocket
ws, err := upGrader.Upgrade(c.Writer, c.Request, nil)
if err != nil {
logger.Error(err)
return
}
defer ws.Close()
errChan := make(chan error, 1)
controlChan := make(chan controlStruct, 1)
go tailNginxLog(ws, controlChan, errChan)
go handleLogControl(ws, controlChan, errChan)
if err = <-errChan; err != nil {
logger.Error(err)
_ = ws.WriteMessage(websocket.TextMessage, []byte(err.Error()))
return
}
}